... ular shape also affects polariz-
abil ity. Elongat ed mole cules are more polar izabl e than compa ct molecules . Thus, a
line ar alkane is more polar izable than a branche d alkane of the same ... carbonate, carboxylate, phosphate, and cyanide anions, as well as
water molecules, humic acids, and synthetic chelating agents such as nitrilo-
triacetate (NTA) and ethylenediaminetetraacetat...
... substantial impair-
ment of the abundance and diversity of species.
Class 1—Warm water aquatic life: The se are waters that (1) are currently capable
of sustaining a wide variety of warm water ... present.
Waters for which no use attainability analysis has been performed demon-
strating that a recreation class 2 classification is appropriate shall be
assigned a class 1a clas...
... more
biologically available than are particulate forms, although ingestion and inhalation of
particulates containing metals also can be a serious health hazard. Radioactive metals
are hazardous because of ... this chapter that cations in water always attract a hydration shell of water molecules
because of electrostatic attractions. Although a cation dissolved in water is often...
... water
aver age linear velo city of contamina nt
( 5: 26 )
A retardati on facto r of 10 means that the contamina nt moves at o ne-tenth of the
average veloci ty of the groundwat er. The average ... 1,1 ,2, 2-Tetrachloroethane
(PCA)
2 2.97Eþ03 3.45EÀ04 1.41EÀ 02 2.39 1.97 9.33Eþ01 21 5 À44
12 7-1 8-4 Tetrachloroethylene
(PCE, PERC)
2 2.00Eþ 02 1.84EÀ 02 7.54EÀ01 2. 67...
... 10
À1
1 .27 3 10
À3
ß 20 07 by Taylor & Francis Group, LLC.
(E )-1 , 2- Dichloroethene trans -1 , 2- DCE 15 6-6 0-5 trans-1 , 2- Dichloroethene;
trans-1 , 2- dichloroethylene;
acetylene dichloride
C
2
H
2
Cl
2 ... Contaminants of Concern at Many Hazardous Waste Sites
Chemical Abstracts Service
(CAS) Name Abbreviation CAS Number Other Names
Molecular
Formula
Structural
F...
... groundwater are usually less than 10 mg=L.
9.5.3 RADIUM
All the isotopes of radium between Ra -2 2 3 and Ra -2 3 0 have been observed. Only
Ra -2 2 3, Ra -2 2 4, Ra -2 2 6, and Ra- 22 8 occur natur ally (see Table ... a
emission.
.
Ra -2 2 4, in the thorium -2 3 2 decay series, decays to radon -2 2 0 by a
emission.
.
Ra -2 2 6, in the uranium -2 3 8 decay series, decays to radon -2 2 2...
... Nature Carry a Surface Charge?
Cation and Anion Exchange Capacity (CEC and AEC)
Exchangeable Bases: Percent Base Saturation
CEC in Clays and Organic Matter
Rates of Cation Exchange
6.7 Indicators ... CO
2
in Water
Soil CO
2
3.5 Acidity and Alkalinity
Background
Acidity
Alkalinity
Importance of Alkalinity
Criteria and Standards for Alkalinity
Calculating Alkalinity
Calculating...
... (electronegativity of C = 2. 5; electronegativity of H = 2. 1) all alkanes are nonpolar
because of their bond geometry. In the straight-chain alkanes (called normal-alkanes),
as the alkane carbon chain becomes ... also affects polarizability. Elongated molecules are more polarizable than compact molecules.
Thus, a linear alkane is more polarizable than a branched alkane of the s...